Born in 1956 in New York, Stephen Jeandheur received his musical education at the Cleveland Institute of Music in Ohio under Bernard Adelstein and in Chicago with Arnold Jacobs. Throughout his studies, he played regularly with the Cleveland Orchestra.

In 1978 he participated in the very first digital recording of classical music conducted by Frederick Fennell and the Cleveland Wind Ensemble. He has been invited as first soloist successively at the Boulder Festival in Colorado and the World Philharmonic Orchestra in Montreal, at the Tonhalle in Zurich by the Basel and Bern orchestras, at the Capitole in Toulouse, at the Arturo Toscanini Philharmonic and at the Oslo Opera Orchestra in Norway.

Stephen Jeandheur was principal trumpet of the orchestras of the Kassel Opera and the Staatsorchester Rheinische Philharmonie in Koblenz before joining the Orchestre de la Suisse Romande in 1984 as first soloist. He regularly gives masterclasses in Germany, Norway and Denmark.